Jean Agudelo

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Software

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Freelancer Overview

I am a systems and computer engineer with hands-on experience in data analysis, transformation, and automation, specializing in creating robust data pipelines and managing large datasets. My background includes developing ETL processes using Python (with Pandas and NumPy), KNIME, and SQL for efficient data cleansing, annotation, and extraction, supporting business decision-making and insight generation. I have worked extensively with PostgreSQL databases and have integrated data-driven applications using REST APIs, Power Platform, and AWS services. My focus on clean code, scalable solutions, and process automation enables me to deliver high-quality, reliable training data for AI and machine learning projects. I am passionate about leveraging my technical skills to support accurate data labeling and annotation in diverse domains.

Labeling Experience

AI Data Labeling & Prompt Evaluation for LLM Training

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Worked on data annotation and evaluation for large language models. Tasks included reviewing AI-generated responses, classifying outputs based on quality and safety guidelines, improving prompts, and validating reasoning accuracy. Followed strict quality assurance processes and met weekly productivity targets. Ensured consistency, factual accuracy, and compliance with platform guidelines.

Worked on data annotation and evaluation for large language models. Tasks included reviewing AI-generated responses, classifying outputs based on quality and safety guidelines, improving prompts, and validating reasoning accuracy. Followed strict quality assurance processes and met weekly productivity targets. Ensured consistency, factual accuracy, and compliance with platform guidelines.

2025 - 2025

Education

Work History